Author Topic: Inkscape DXF  (Read 326 times)

pedwards2932

  • Sr. Member
  • ****
  • Posts: 371
    • View Profile
Inkscape DXF
« on: April 27, 2020, 07:40:08 PM »
Been a long time since I have used my laser to cut.  I did all my tracing of the parts in Inkscape 0.92.  I did ran object to path then I flattened the Bezier. I used mm for scale and when I chose save as dxf I used mm and the drawing looks tiny but when I click output size on t2 it looks correct as I need it to be 3" by 8".  I then followed Zax's instructions and used px for the export and the size in the t2 looks correct but when I click the output size it looks pretty large
282 x 748 mm.  I haven't tried to run this yet just want to make sure I am doing it correctly.  Is there anyway to check the dimensions of the drawing in t2 to make sure they are accurate?

Zax

  • T2Laser
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 7190
    • View Profile
    • T2Laser
Re: Inkscape DXF
« Reply #1 on: April 28, 2020, 03:58:56 AM »
The latest Inkscape works correctly when you use mm for export, previous version did not so the old tutorial said you use px.

pedwards2932

  • Sr. Member
  • ****
  • Posts: 371
    • View Profile
Re: Inkscape DXF
« Reply #2 on: April 28, 2020, 04:35:58 AM »
I downloaded the latest version of Inkscape and tried it using mm for export and the drawing still looks tiny in T2.  Could this have anything to do with the resolution setting?

pedwards2932

  • Sr. Member
  • ****
  • Posts: 371
    • View Profile
Re: Inkscape DXF
« Reply #3 on: April 28, 2020, 07:58:10 AM »
I tried a simple test with a new drawing.  It was a 200mm x 200mm box.  The settings were mm for the page and the dxf export.  When I brought it in to T2 I got dimensions 90.6 x 95.9. Not sure what is going on.... I don't want to have to redraw my parts if I can avoid it but it seems from the simple drawing it wouldn't help to redraw.

Zax

  • T2Laser
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 7190
    • View Profile
    • T2Laser
Re: Inkscape DXF
« Reply #4 on: April 28, 2020, 08:48:41 AM »
This is going to be easier to support by email, send me the DXF and I will check the sizes. I don't know if this is a settings issue or your export.

pedwards2932

  • Sr. Member
  • ****
  • Posts: 371
    • View Profile
Re: Inkscape DXF
« Reply #5 on: April 28, 2020, 03:08:56 PM »
I can see how to e-mail  you thru the forum but it doesn't allow me to attach.  Here is the last file I tried.  I saw an app that you can add to Inkscape that is supposed to help with this called Big Blue Saw....not sure if you have heard of it.

pedwards2932

  • Sr. Member
  • ****
  • Posts: 371
    • View Profile
Re: Inkscape DXF
« Reply #6 on: April 28, 2020, 03:58:28 PM »
If I set the scale to 3.77953 it comes out pretty close.  The sguare I drew was 50mmx50mm and the frame around it was 52x52.....when I imported it to T2 it shows the size as 50.9 x 50.9.  I got this off an Inkscape forum.....still seems a bit sketchy to me.

Zax

  • T2Laser
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 7190
    • View Profile
    • T2Laser
Re: Inkscape DXF
« Reply #7 on: April 28, 2020, 04:03:14 PM »
I checked your DXF with T2Laser and it matches exactly.

In the Help menu load one of the sample files and check that. If it's wrong, use the Restore Defaults option in the Help menu as you may have selected a scaling override.

My email and contact information is on my https://t2laser.org and in my profile on this forum.

pedwards2932

  • Sr. Member
  • ****
  • Posts: 371
    • View Profile
Re: Inkscape DXF
« Reply #8 on: April 28, 2020, 05:36:46 PM »
I noticed you had auto zoom on.....when I put that on the drawing size looks correct. Maybe that was my mistake.  I'll try a test on paper and see.

Zax

  • T2Laser
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 7190
    • View Profile
    • T2Laser
Re: Inkscape DXF
« Reply #9 on: April 29, 2020, 03:53:18 AM »
Zoom, manual or auto makes no difference to the document size or output dimensions. It's a screen visual aid as with every other program.

pedwards2932

  • Sr. Member
  • ****
  • Posts: 371
    • View Profile
Re: Inkscape DXF
« Reply #10 on: April 29, 2020, 05:03:36 AM »
I understand it doesn't effect the actual laser path I just don't remember the dxf image opening so tiny.  I may have had auto zoom on before.  By the way how do you manually zoom?  The only place I saw to change the size was with output size which would change the dimensions of the laser path.

Zax

  • T2Laser
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 7190
    • View Profile
    • T2Laser
Re: Inkscape DXF
« Reply #11 on: April 29, 2020, 05:38:41 AM »
Turn off auto-zoom and right click the magnifier icon to toggle the zoom setting (4:1, 2:1 and 1:1).

pedwards2932

  • Sr. Member
  • ****
  • Posts: 371
    • View Profile
Re: Inkscape DXF
« Reply #12 on: April 29, 2020, 06:38:40 AM »
Thank you so much....it seems my default opens it at 4:1 so I was panicking for no reason